interesting effect : C:\mkgmap.jar --mapname=99999999 --gmapsupp test.typ --remove-short-arcs --style-file=styles --style=test --family-id=446 --keep-going --transparent --index --net --route --draw-priority=10 C:\map.osm this results in an img 10000000.img C:\mkgmap.jar --gmapsupp test.typ --remove-short-arcs --mapname=99999999 --style-file=styles --style=test --family-id=446 --keep-going --transparent --index --net --route --draw-priority=10 C:\map.osm this creates 99999999.img as you would expect when placing mapname before gmapsupp the mapname value is generally incremented by one , ie 200000000,img becomes 200000001.img tested with latest mkgmap Not a problem, just interesting ..Nick -- View this message in context: http://gis.19327.n5.nabble.com/just-the-one-tp5453358p5453358.html Sent from the Mkgmap Development mailing list archive at Nabble.com.